Requires OS X 10.11 El Capitan or later (Ready for macOS 11 Big Sur) Audiobook Builder is not compatible with Microsoft Windows or Linux. Find Your Smile in an Audiobook Traveling to and from work, while exercising, or waiting in line - find your smile in a book with Audiobook Builder! Audiobook Builder makes it easy to turn audio CDs and files into audiobooks for your iPhone®, iPad®, or other App